<template>
    <div>
        <h1>当前求和为{{ $store.state.sum }}</h1>
        <h2>扩大十倍后为{{ $store.getters.bigSum }}</h2>
        <select v-model.number="n">
            <option value="1">1</option>
            <option value="2">2</option>
            <option value="3">3</option>
        </select>
        <button @click="increment">+</button>
        <button @click="decrement">-</button>
        <button @click="incrementOdd">当前求和为奇数再加</button>
        <button @click="incrementWait">等一等再加</button>
    </div>
</template>

<script>
export default {
    name:'Category',
    data(){
        return{
            sum:0,
            n:1//用户选择数字
        }
    },
    methods:{
        increment(){
            //this.$store.dispatch('jia',this.n) 
            this.$store.commit('JIA',this.n)
        },
        decrement(){
            //this.$store.dispatch('jian',this.n) 
            this.$store.commit('JIAN',this.n)
        },
        incrementOdd(){
            /* if(this.$store.state.sum%2){
                this.$store.dispatch('jia',this.n) 
            } */
            this.$store.dispatch('jiaOdd',this.n) 
        },
        incrementWait(){
           /*  setTimeout(()=>{
                this.$store.dispatch('jia',this.n)
            },500) */
            this.$store.dispatch('jiaWait',this.n) 
        }
    }
}
</script>
<style scoped>
    button{
        margin-left: 5px;
    }
</style>
